Disturbing

I wonder what the housekeepers think when they encounter the DO NOT DISTURB signs. Do they merely think the occupant is sleeping or showering? Or that the person is doing a particularly difficult crossword puzzle and cannot be interrupted? Or meditating between the credenza and an open suitcase?
Or, do they think, as I do, that behind the door lies a fleshy Midwestern tourist, naked, hog-tied (probably expertly), waiting, as instructed by her flubby husband, to return with a cup of coffee for himself and nothing for her, before administering the morning beating before heading out to see the sights?